HMF8M8M4G Datasheet, PDF (1/11 Pages) Hanbit Electronics Co.,Ltd – FLASH-ROM MODULE 8MByte (8M x 8-Bit)

HANBit
HMF8M8M4G
FLASH-ROM MODULE 8MByte (8M x 8-Bit)
Part No. HMF8M8M4G
GENERAL DESCRIPTION
The HMF8M8M4G is a high-speed flash read only memory (FROM) module containing 8,388,608 words organized in a x8bit
configuration. The module consists of four 2M x 8 FROM mounted on a 72-pin, single-sided, FR4-printed circuit board.
Commands are written to the command register using standard microprocessor write timings.
Register contents serve as input to an internal state-machine, which controls the erase and programming circuitry. Write cycles
also internally latch addresses and data needed for the programming and erase operations. Reading data out of the device is
similar to reading from 12.0V flash or EPROM devices.
Four chip enable inputs, (/CE1, /CE2, /CE3, /CE4) are used to enable the module’s 4 bytes independently. Output enable (/OE)
and write enable (/WE) can set the memory input and output.
When FROM module is disable condition the module is becoming power standby mode, system designer can get low-power
design. All module components may be powered from a single +5V DC power supply and all inputs and outputs are TTL-
compatible.
FEATURES
w Part identification
- HMF8M8M4 (Solder Plating Lead)
- HMF8M8M4G (Gold Plating Lead)
w Access time : 70, 90, 120ns
w High-density 8MByte design
w High-reliability, low-power design
w Single + 5V ± 0.5V power supply
w Easy memory expansion
w All inputs and outputs are TTL-compatible
w FR4-PCB design
w Low profile 72-pin SIMM
w Minimum 1,000,000 write/erase cycle
w Flexible sector architecture
w Embedded algorithms
w Erase suspend / Erase resume
OPTIONS
w Timing
70ns access
90ns access
120ns access
w Packages
72-pin SIMM
MARKING
- 70
- 90
-120
M
PIN ASSIGNMENT
PIN SYMBOL PIN SYMBOL PIN SYMBOL
1
Vss
25
A15
49
NC
2
/CE0 26
A16
50
NC
3
/CE1 27
A17
51
NC
4
/CE2 28
A18
52
NC
5
/CE3 29
A19
53
NC
6
Vcc
30
Vcc
54
NC
7
/WE
31
A20
55
NC
8
/OE
32
DQ0
56
NC
9 /RESET 33
DQ1
57
NC
10
A0
34
DQ2
58
NC
11
A1
35
DQ3
59
Vcc
12
A2
36
DQ4
60
NC
13
A3
37
DQ5
61
NC
14
A4
38
DQ6
62
NC
15
A5
39
Vss
63
Vss
16
A6
40
DQ7
64
NC
17
A7
41 /RY_BY0 65
NC
18
A8
42 /RY_BY1 66
NC
19
A9
43 /RY_BY2 67
NC
20
A10
44
Vcc
68
NC
21
A11
45 /RY_BY3 69
NC
22
A12
46
NC
70
NC
23
A13
47
NC
71
NC
24
A14
48
NC
72
Vss
URL: www.hbe.co.kr
REV.02(August,2002)
72-PIN SIMM
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1
HANBit Electronics Co., Ltd.